HPE Cable Infiniband Enhanced Data Rate (EDR) Copper QSFP to QSFP 0.5m 836247-001

HPE Cable Infiniband Enhanced Data Rate (EDR) Copper QSFP to QSFP 0.5m 836247-001

Description

The HPE 836247-001 is a short-range, high-performance InfiniBand EDR (Enhanced Data Rate) direct attach copper (DAC) cable designed for low-latency, high-bandwidth interconnects between servers, storage, and switches in high-performance computing (HPC) and data center environments.

It uses QSFP28 connectors on both ends and is optimized for 100Gb/s InfiniBand EDR throughput, providing a cost-effective alternative to optical transceivers for short distances.

Key Specifications

• Cable Type: Direct Attach Copper (DAC) Twinax
• Protocol: InfiniBand EDR
• Data Rate: Up to 100 Gb/s
• Connector Type: QSFP28 to QSFP28
• Cable Length: 0.5 meters (0.5 m)
• Form Factor: Passive copper cable
• Compatibility: HPE servers, storage, and InfiniBand switches supporting QSFP28 interfaces
• Impedance/Medium: Twinax copper

Functional Characteristics

• Provides low latency and high throughput interconnect for HPC clusters
• Supports RDMA (Remote Direct Memory Access) over InfiniBand
• Enables high-efficiency data transfer with minimal CPU overhead
• Designed for short-distance rack-to-rack or intra-rack connectivity
• Plug-and-play operation (no additional optics required)

InfiniBand EDR Features (Platform-Level Support)

• Hardware-based reliable transport
• Collective operations offload
• Reliable multicast support
• Extended Reliable Connected (XRC) transport
• Dynamically Connected Transport (DCT)
• Enhanced atomic operations
• Advanced memory mapping and on-demand paging (ODP)

Physical / Compliance

• HS Code: 85444290
• Cable Jacket: Black (typical)
• Construction: Shielded twinax copper

Typical Use Cases

• High-performance computing (HPC) clusters
• AI / ML training infrastructure
• Data center spine-leaf interconnects (short reach)
• Storage area networking with InfiniBand

Summary

The HPE 836247-001 is a 0.5m QSFP28 DAC cable delivering 100Gb/s InfiniBand EDR performance, intended for ultra-low-latency, short-distance connections inside modern data centers. It eliminates the need for optical modules while maintaining high bandwidth and reliability, making it ideal for dense, cost-sensitive deployments.

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